qemu/roms/openbios/arch/ppc/mol/init.c

   1 /*
   2  *   Creation Date: <1999/11/16 00:49:26 samuel>
   3  *   Time-stamp: <2004/04/12 16:26:50 samuel>
   4  *
   5  *      <init.c>
   6  *
   7  *      Initialization
   8  *
   9  *   Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 Samuel & David Rydh
  10  #      (samuel@ibrium.se, dary@lindesign.se)
  11  *
  12  *   This program is free software; you can redistribute it and/or
  13  *   modify it under the terms of the GNU General Public License
  14  *   as published by the Free Software Foundation
  15  *
  16  */
  17
  18 #include "config.h"
  19 #include "libopenbios/openbios.h"
  20 #include "libopenbios/bindings.h"
  21 #include "arch/common/nvram.h"
  22 #include "mol/mol.h"
  23 #include "libopenbios/ofmem.h"
  24 #include "mol/prom.h"
  25 #include "openbios-version.h"
  26 #include "osi_calls.h"
  27 #include "boothelper_sh.h"
  28
  29 extern void unexpected_excep( int vector );
  30
  31 int
  32 get_bool_res( const char *res )
  33 {
  34         char buf[8], *p;
  35
  36         p = BootHGetStrRes( res, buf, sizeof(buf) );
  37         if( !p )
  38                 return -1;
  39         if( !strcasecmp(p,"true") || !strcasecmp(p,"yes") || !strcasecmp(p,"1") )
  40                 return 1;
  41         return 0;
  42 }
  43
  44 void
  45 unexpected_excep( int vector )
  46 {
  47         printk("MOL panic: Unexpected exception %x\n", vector );
  48         for( ;; )
  49                 ;
  50 }
  51
  52 unsigned long isa_io_base;
  53
  54 void
  55 entry( void )
  56 {
  57         isa_io_base = 0x80000000;
  58
  59         printk("\n");
  60         printk("=============================================================\n");
  61         printk(PROGRAM_NAME " " OPENBIOS_VERSION_STR " [%s]\n",
  62                OPENBIOS_BUILD_DATE);
  63
  64         ofmem_init();
  65         initialize_forth();
  66         /* won't return */
  67
  68         printk("of_startup returned!\n");
  69         for( ;; )
  70                 ;
  71 }
  72
  73 static void
  74 setenv( char *env, char *value )
  75 {
  76         push_str( value );
  77         push_str( env );
  78         fword("$setenv");
  79 }
  80
  81 void
  82 arch_of_init( void )
  83 {
  84         mol_phandle_t ph;
  85         int autoboot;
  86
  87         devtree_init();
  88         node_methods_init();
  89         nvram_init("/pci/mac-io/nvram");
  90         openbios_init();
  91         modules_init();
  92         pseudodisk_init();
  93         osiblk_init();
  94         osiscsi_init();
  95         init_video();
  96
  97         if( (ph=prom_find_device("/rtas")) == -1 )
  98                 printk("Warning: No /rtas node\n");
  99         else {
 100                 unsigned long size = 0x1000;
 101                 while( size < (unsigned long)of_rtas_end - (unsigned long)of_rtas_start )
 102                         size *= 2;
 103                 prom_set_prop( ph, "rtas-size", (char*)&size, sizeof(size) );
 104         }
 105
 106         /* tweak boot settings */
 107         autoboot = !!get_bool_res("autoboot");
 108         if( !autoboot )
 109                 printk("Autobooting disabled - dropping into OpenFirmware\n");
 110         setenv("auto-boot?", autoboot ? "true" : "false" );
 111         setenv("boot-command", "molboot");
 112
 113         if( get_bool_res("tty-interface") == 1 )
 114                 fword("activate-tty-interface");
 115
 116         /* hack */
 117         device_end();
 118         bind_func("molboot", boot );
 119 }